BAS521 HIGH VOLTAGE SWITCHING DIODE Features Mechanical Data Fast Switching Speed: max. 50 ns Case: SOD-523 High Reverse Breakdown Voltage: 300V Case Material: Molded Plastic, Green Molding Compound. UL Flammability Classification Rating 94V-0 Low Leakage Current: 100nA at room temperature Moisture Sensitivity: Level 1 per J-STD-020 Ultra Small Plastic SMD Package Terminal Connections: Cathode Bar Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Terminals: Finish - Matte Tin annealed over Alloy 42 leadframe. Halogen and Antimony Free. Green Device (Note 3) Solderable per MIL-STD-202, Method 208 Weight: 0.0014 grams (approximate) SOD523 2 1 Top View Device Schematic Ordering Information (Note 4) Part Number Case Packaging (Note 5) BAS521-7 SOD523 3000/Tape & Reel BAS521-13 SOD523 10000/Tape & Reel Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See BAS521 Maximum Ratings ( T = +25C, unless otherwise specified.) A Characteristic Symbol Value Unit Repetitive Peak Reverse Voltage 300 V V RRM Working Peak Reverse Voltage 300 V V RWM DC Blocking Voltage Forward Current (Note 6) I 250 mA F Non-Repetitive Peak Forward Surge Current t = 1.0s I 4.5 A FSM Repetitive Peak Forward Current (Note 6) I 1 A FRM Thermal Characteristics Characteristic Symbol Value Unit Power Dissipation (Note 6) P 325 mW D Thermal Resistance Junction to Ambient Air (Note 6) 385 R C/W JA Operating and Storage Temperature Range T , T -65 to +150 C J STG Electrical Characteristics ( T = +25C, unless otherwise specified.) A Characteristic Symbol Min Max Unit Test Condition Reverse Breakdown Voltage (Note 7) V 300 V I = 100A (BR)R R Forward Voltage 1.1 V V I = 100mA F F 50 nA V = 5V R nA Reverse Current (Note 7) I 150 V = 250V R R 100 A V = 250V, T = +150C R J Total Capacitance C 5 pF V = 0, f = 1.0MHz T R I = I = 30mA, F R Reverse Recovery Time 50 ns t rr I = 0.1 x I , R = 100 rr R L Notes: 6. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at